The table above shows the margin of error, represented by the lower
and upper bounds of the 90-percent confidence interval. The confidence interval
gives a range of values likely to include the population true value. The
smaller the confidence interval the more precise the estimate of the characteristic
of interest.

An "N" entry in the estimate, lower bound, and upper bound columns indicates
that data for this geographic area cannot be displayed because the number
of sample cases is too small.